Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 14-07-2010, 02:22   #46
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: Living on dirt waiting for our new yacht to be built.
Boat: Half built Bestevaer.
Posts: 10,619
Quote:
Originally Posted by gvolos View Post
Hi all. Could any of you nice fellows that have experienced this problem tell me if they have found a permanent fix?
Sounds like a mind blower.
Thank you.
Still no solution.
Yanmar did get in touch with me see
Yanmar Unresponsive
but after 2 weeks I have heard nothing more.
__________________

__________________
noelex 77 is offline   Reply With Quote
Old 14-07-2010, 02:43   #47
Registered User

Join Date: Jan 2010
Location: Athens Greece
Posts: 33
What a shame. Please keep us posted if anything comes up
Thank you and wish you the best.
__________________

__________________
George Volos
gvolos is offline   Reply With Quote
Old 14-07-2010, 03:50   #48
Registered User
 
Sabbatical II's Avatar

Join Date: Apr 2009
Location: Lake Macquarie
Boat: Bluewater 420 CC
Posts: 756
Images: 1
I've had similar problems with Yanmar 2QM15. Eventually I found that the fuel return lines from the injectors were routed back into the fuel filter. I thought this was strange, but apparently it's not uncommon. I re-routed my return lines straight to the tank and have had no more problems. I have seen a new 54hp Yanmar at a boat show that plumbed the return lines into the filter. I am currently building a boat fitted with a 75hp Yanmar and the builder tells me he always sends the return to the tank.

Greg
__________________
Greg
Sabbatical II is offline   Reply With Quote
Old 14-07-2010, 03:58   #49
Registered User

Join Date: Jan 2010
Location: Athens Greece
Posts: 33
Sounds like a good idea, and since it worked for you, perhaps someone else should give it a shot also and see if this works for him.
__________________
George Volos
gvolos is offline   Reply With Quote
Old 14-07-2010, 04:13   #50
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
On some installations the fuel return line to the tank can drain fuel from the return line and let air get up towards the injectors or pump. The fix for this is to have the return tube extend to the bottom of the tank. This issue is indicated when a diesel seems to need bleeding, or is slow to start, after sitting for a while. Most installations don't seem to be sensitive to this but enough are that I've seen it as an installation requirement in some manuals. Just a tip.
__________________
daddle is offline   Reply With Quote
Old 02-08-2010, 11:11   #51
Registered User

Join Date: Mar 2010
Posts: 15
Has anyone found resolution to this defect on the Yanmar 54hp (4jh4ae)? I have been experiencing the exact same issue with a virtually new motor. I repowered 5 months ago and have 60 total hours on the engine. The engine starts ok sometimes... generally it stalls after a few seconds of running and has to be cranked and throttled way up for it to restart. It seems to run good once going, but not happy having this issue on a brand new Yanmar. It sounds like the filter housing change was not a permanent fix?

Thanks

Jarod
__________________
jarod is offline   Reply With Quote
Old 03-08-2010, 03:48   #52
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: Living on dirt waiting for our new yacht to be built.
Boat: Half built Bestevaer.
Posts: 10,619
These are the symptoms I am experiencing, it sounds like you have the same problem.
Replacing the secondary filter housing seems like a permanent fix providing there is no other air leaks, at least from the reports I am hearing. As I have redone my entire fuel system and replaced every component at least once so I am expecting a permanent fix from the change.
Yanmar are sourcing replacement components, but at the moment they are out of stock.
I will certainly report on the success (or otherwise) of the change.
__________________
noelex 77 is offline   Reply With Quote
Old 22-09-2010, 05:16   #53
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: Living on dirt waiting for our new yacht to be built.
Boat: Half built Bestevaer.
Posts: 10,619
I have posted a new thread with hopefully my solution to the problem
Solution to Yanmar 4JH4AE Starting
__________________

__________________
noelex 77 is offline   Reply With Quote
Reply

Tags
yanmar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar 1GM starting issues Hunter27 Engines and Propulsion Systems 30 07-12-2015 15:33
Starting Issues - Yanmar 4JH3E Labatt Engines and Propulsion Systems 4 23-06-2009 02:44
Starting problem with Yanmar 3GM30 Southern Star Engines and Propulsion Systems 0 22-08-2008 11:13
Hard Starting Yanmar 3GM30 sailcruz Engines and Propulsion Systems 2 15-05-2007 14:47



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:55.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.